Delivery-vehicle.



M. WO RKSMAN.

DELIVERY VEHICLE.

APPLICATION 111.20 MAR.l411914.

2 SHEETS-SHEET 1- WITNESSES lA/I/E/VTOR COLUMBIA PLANCJGRAPII cumgwmxu'rox. n, c.

M. WORKSMAN.

DELIVERY VEHICLE.

APPLICATION FILED MAR. 14. 1914.

1,146,29-6@ Patented July 13, 1915.

2 SHEETS-SHEET 2- r Illllll! WITNESSES l/Vl/E/VTOR IQ. GLZW'JL WDELIVERY-VEHICLE.

Specification of Letters Patent.

Patented July 13, 1915.

Application filed March 14, 1914. Serial No. 824,679.

To all whom it may concern Be it known that I, MORRIS WORKSMAN, acitizen of the United States, residing in the borough of Manhattan,city, county, and State of New York, have invented certain new anduseful Improvements in Delivery- Vehicles, of which the following is afull and clear specification.

My invention relates to delivery vehicles and more especially to thosein the form of bundle carrying bicycles or tricycles.

An important object of my invention is to provide an attachment whichcan be applied to ordinary bicycles or motor cycles to form a deliveryvehicle. It has already been proposed to mount package carriers uponbicycles and the like, but according to my invention the bundle carrierportion is provided with one or more wheels'and hence virtually formspart of the vehicle itself.

Two embodiments of the invention are illustrated by way of example inthe accompanying drawing, in which Figure 1 is a side elevation ofa'bicycle provided with one form of my attachment; Fig. 2 is a rearelevation of the same; Fig. 3 is a detail transverse section through'thebundle carrier, illustrating the support of the carrier at the rear axleof the bicycle; Fig. 4 is a detail vertical longitudinal sec-- tion ofthe bundle carrier, illustrating the yielding attachment of the carrierto the bicycle frame; Fig. 5 is a side elevation of another embodimentof my invention in which the rear wheel of the bicycle is removed andthe drive occurs through the bundle carrier wheels; Fig. 6 is anunderneath plan view of the bundle carrier showing the drivetransmission, and Fig. 7 is a rear elevation of the bundle carrier andits supporting and driving wheels, with parts the bundle carrier.Thebundle carrier is provided with suitable brackets 9 from which arehung the bent, curved or offset forks 10 for auxiliary wheels 11.

It will be observed that with the arrangement thus far described, thevehicle as a whole has three transverse lines ofengagement with the roadbed namely, the wheels 1, 2 and 11. In view of this condition itisessential that one of these transverse lines be capable of moving out ofthe longitudinal line of the other two so as to accommodateirregularities or deviations of the road bed from a single plane. Tosatisfy this requirement I prefer to have the bundle carrier so mountedwith respect to the bicycle as to permit relative movement between thetwo. Figs. 3and 4 illustrate one construction by which this relativemovement is provided for. Referring to Fig. 3 the rear wheel 2 of thebicycle is shown as having its axle 12 extended by a threaded sleeve 13into the outer threaded end ofwhich is screwed a bolt 14. The bottom ofcarrier 5 has secured to it brackets15 which are perforated to receivethe bolt 14, and the bolt 14 passes through the perforated portion ofthe bracket 15 and a washer 16, whereby the box is pivotally secured tothe'extension 13 of' the rear wheel axle 12.

To further support and steady the bundle carrier 5, I provide aresilient thrust support by which the upper portion of the bundlecarrier is secured to the rear portion of the bicycle frame, asillustrated in Fig. 4. Referring to Fig. 4 it will be seen that the rearfork of the bicycle frame has secured to it a clamp 17 which is providedwith a socket 18 to receive a sleeve 19. The bottom of sleeve 19 issplit and formed with wedging'surfaces which are engaged by a rod 20 tospread the split end of the sleeve and firmly secure it within thesocket 18. A post 21 has its upper end fixedly and adjust'ably securedin a bracket 22 by a set bolt 23 which is threaded into the tappedend-of the post 21. The lower end of the post 21 is provided with alongitudinal bore. The post 21 is slidably positioned in the sleeve 19,with a cushioning spring 24 disposed'within its longitudinal bore andengaging the end wall of the bore and a disk 25, which is secured on thelower end of the rod 20. By this construction the bundle carrier or box5 is adapted to pivot on the rear wheel axis and is given additional support and further steadied by the cushioning support or attachment.

Referring to the embodiment shown in Figs. 5, 6 and 7, of the drawing, Ihave herein illustrated a construction in which the rear wheel of thebicycle is removed and the drive is effected through a drive wheelmounted on the bundle carrier or box. In this embodiment indicates thefront wheel and 31 the frame of a bicycle which is driven by chain 32.The rear axle of the bicycle proper remains in the rear fork and isutilized as one of the means of securing F the bundle carrier to thebicycle, in addition to its function as a sprocket wheel axis. Chain 32operates a rear sprocket 33, the connection preferably being providedwith any approved coaster brake device 35. The sprocket 3 f operates onchain 36 which engages a sprocket wheel 37 which is fixed on sleeveshaft 38. Sleeve shaft 38 is mounted in an adjustable bracket or bearing39 and has fixed thereon a drive wheel A0. An inner shaft 41 is mountedin an adjustable bracket or bearing 4:2 and has fixed thereon an idlewheel 4&3. The shaft 41 is freely disposed within the sleeve shaft 38.The brackets or bearings 39, 42 are adjustable by fixing them indifferent positions upon the plates 44 and 45, which are suitablysecured to the bottom of the bundle carrier or box A6. By adjusting thepositions of the bearing brackets 39, 42 the proper tension on chain 36can be provided. The rear axle 47 of the bicycle, which has mountedthereon the sprocket wheels 33, 34: and the coaster brake mechanism issecured to the box in brackets A8, 49. It will be seen that the rearaxle 427 is mounted directly in the rear fork of the bicycle frame andthe forward end of the box is constructed at an angle to the horizontaltop and bottom so,

as to conform with the plane of the rear fork or frame of the bicycle.The box is further secured to the bicycle frame by a clamp plate 50 (seeFig. 5) having a bolt 51 which passes through the clamp plate andthrough the front board of the box 36. As shown in Fig. '7, the rearwheels 4O, 43 may be housed within the box 46 in side compartmentsformed by the partition walls 52.

It will be apparent that by the construction shown and describedinvolving the con formation of the box with the rear frame of thebicycle and the securing of the box (through axles 47) directly to thebottom of the bicycle frame and by clamp 50 directly to the upperportion of the bicycle frame, a structure of great strength and rigidityis obtained while at the same time the expense of special parts isminimized and the bundle carrier is rendered directly attachable to theordinary bicycle frame with great simplicity.

While I have selected these two embodiments of my invention toillustrate the principles involved, it will be apparent the inventionisapplicable to, and hence includes, within this broad scope, the use ofthe bundle carrying attachment in conjunction with tricycles, motorcycles or any similar type of vehicle and is not necessarily limited tothe attachment of the device to the rear, but it may be mounted in thefront. The term bicycle is employed herein to include these variousforms of manually propelled vehicles.

I claim:

1. A delivery vehicle comprising in combination a bicycle, a detachablebundle carrier shaped to conform with the rear frame of the bicycle,supporting wheels mounted thereon, and means for securing said bundlecarrier against the rear frame of the bicycle.

2. A delivery vehicle comprising in com bination a bicycle, a detachablebundle carrier shaped to conform with the rear frame of the bicycle,supporting wheels mounted thereon, and means for securing said bundlecarrier above and below, against the rear frame of the bicycle.

3. A delivery vehicle comprising in combination a bicycle, a detachablebundle carrier shaped to conform with the rear frame of the bicycle,supporting wheels mounted thereon, means for securing said bundle carrier at one point to the rear axle of the bicycle and means for securingsaid bundle carrier at another point to the rear frame of the bicycleabove said axle.

4:. A delivery vehicle comprising in combination a bicycle, a detachablebundle carrier having supporting wheels, driving gear connectedtherewith and with the rear sprocket of the bicycle proper, means forsecuring said bundle carrier at one point to the rear axle of thebicycle and means for securing said bundle carrier at another point tothe upper portion of the rear frame of the bicycle.

MORRIS WORKSMAN.

Witnesses WM. A. Gon'armnn, OCTAVIUS KNIGHT.

Qopies of this patent may be obtained for five cents each, by addressingthe f Commissioner of Eatents, Washington, D. G.

